.nav{
    width: 100%;
    height: 60px;
    background-color: #00b894;
}
.nav span{
    color: white;
    padding-left: 50px;
    line-height: 60px;
    font-size: 30px;
}
.nav a{
    float: right;
    line-height: 60px;
    padding-right: 20px;
    font-size:20px;
    color: white;
}

#left{
    float: left;
    position: relative;
    width:75%;
}
#content{
    float: right;
    margin-top: 50px;
    margin-right:40px;
    width: 85%;
    border: 1px solid #aaaaaa;
    box-shadow: 6px 5px 5px #807e7e;
    padding:50px 50px;
    background-color: white;
}
#content img{ 
    width:500px;
    height: 400px;
}
#button{
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
}
#button button{
    margin-top: 10px;
    box-shadow: 4px 5px 5px #807e7e;
    float: left;
}
a{
    text-decoration: none;
}
a:hover{
    text-decoration: none;
}
#bottom_img {
    position: absolute;
    top:100px;
    right:50px;
    width: 300px;
}

#bottom_img ul {
    /* border:1px solid #aaaaaa; */
    height: 1000px;
    margin: 0;padding:0;
    overflow: hidden;
    border:1px dashed #00b894;
    text-align: center;
}
#bottom_img h3{
    color: white;
    margin:0;
    line-height: 50px;
    background-color: #00b894;
}
#bottom_img ul li {
    background-color: white;
    margin: 10px;
    height: 400px;
    text-align: center;
    line-height: 30px;
    overflow: hidden;
    cursor: pointer;
    border:1px solid #aaaaaa;
    border-radius: 5px;
    box-shadow: 5px 5px 5px #807e7e;
}

#bottom_img>ul>li>span {
    font-size: 13px;
    position: relative;
    top: 30px;
    left: -50px;
    margin-left: 45px;
}

#line_bottom {
    float: left;
    position: relative;
    left: 700px;

    text-align: center;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    color: rgb(66, 66, 66);
    margin-top: 80px;
}

#line_bottom p {
    margin-top: 30px;
    color: rgb(158, 156, 156);
}
